Module: DBus

Defined in:
lib/dbus.rb,
lib/dbus.rb,
lib/dbus/bus.rb,
lib/dbus/xml.rb,
lib/dbus/auth.rb,
lib/dbus/data.rb,
lib/dbus/type.rb,
lib/dbus/error.rb,
lib/dbus/logger.rb,
lib/dbus/object.rb,
lib/dbus/message.rb,
lib/dbus/bus_name.rb,
lib/dbus/marshall.rb,
lib/dbus/platform.rb,
lib/dbus/matchrule.rb,
lib/dbus/introspect.rb,
lib/dbus/api_options.rb,
lib/dbus/object_path.rb,
lib/dbus/raw_message.rb,
lib/dbus/proxy_object.rb,
lib/dbus/message_queue.rb,
lib/dbus/object_manager.rb,
lib/dbus/emits_changed_signal.rb,
lib/dbus/proxy_object_factory.rb,
lib/dbus/proxy_object_interface.rb

Overview

This file is part of the ruby-dbus project Copyright © 2007 Arnaud Cornet and Paul van Tilburg Copyright © 2009-2014 Martin Vidner

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software Foundation. See the file “COPYING” for the exact licensing terms.

Defined Under Namespace

Modules: Authentication, Data, ObjectManager, Platform Classes: ASessionBus, ASystemBus, ApiOptions, AuthenticationFailed, BusName, Connection, EmitsChangedSignal, Error, ErrorMessage, FormalParameter, IncompleteBufferException, Interface, InterfaceElement, IntrospectXMLParser, InvalidClassDefinition, InvalidDestinationName, InvalidIntrospectionData, InvalidMethodName, InvalidPacketException, Main, MatchRule, MatchRuleException, Message, MessageQueue, Method, MethodReturnMessage, Node, Object, ObjectPath, PacketMarshaller, PacketUnmarshaller, Property, Prototype, ProxyObject, ProxyObjectFactory, ProxyObjectInterface, RawMessage, RemoteBus, Service, SessionBus, Signal, Signature, SingleCompleteType, SystemBus, Type, TypeException

Constant Summary collapse

BIG_END =

Byte signifying big endianness.

"B"
LIL_END =

Byte signifying little endianness.

"l"
HOST_END =

Byte signifying the host’s endianness.

if [0x01020304].pack("L").unpack1("V") == 0x01020304
  LIL_END
else
  BIG_END
end
HOST_ENDIANNESS =

Comparing symbols is faster than strings

Returns:

  • (:little, :big) 
RawMessage.endianness(HOST_END)
SYSTEM_BUS_ADDRESS =

Default socket name for the system bus.

"unix:path=/var/run/dbus/system_bus_socket"
PROPERTY_INTERFACE = 
"org.freedesktop.DBus.Properties"
METHOD_SIGNAL_RE =

Regular expressions that should match all method names.

/^[A-Za-z][A-Za-z0-9_]*$/.freeze
INTERFACE_ELEMENT_RE =

Regular expressions that should match all interface names.

/^[A-Za-z][A-Za-z0-9_]*$/.freeze

Class Method Summary collapse

Class Method Details

.error(name = "org.freedesktop.DBus.Error.Failed") ⇒ Object

Examples:

raise a generic error

raise DBus.error, "message"

raise a specific error

raise DBus.error("org.example.Error.SeatOccupied"), "Seat #{n} is occupied"


43
44
45
46
 
# File 'lib/dbus/error.rb', line 43

def error(name = "org.freedesktop.DBus.Error.Failed")
  # message will be set by Kernel.raise
  DBus::Error.new(nil, name)
end

.logger ⇒ Object

Get the logger for the DBus module. The default one logs to STDERR, with DEBUG if $DEBUG is set, otherwise INFO.



19
20
21
22
23
24
25
 
# File 'lib/dbus/logger.rb', line 19

def logger
  unless defined? @logger
    @logger = Logger.new($stderr)
    @logger.level = $DEBUG ? Logger::DEBUG : Logger::INFO
  end
  @logger
end

.logger=(logger) ⇒ Object

Set the logger for the DBus module



29
30
31
 
# File 'lib/dbus/logger.rb', line 29

def logger=(logger)
  @logger = logger
end

.session_bus ⇒ Connection

Shortcut for the SessionBus instance

Returns:



818
819
820
 
# File 'lib/dbus/bus.rb', line 818

def self.session_bus
  SessionBus.instance
end

.system_bus ⇒ Connection

Shortcut for the SystemBus instance

Returns:



812
813
814
 
# File 'lib/dbus/bus.rb', line 812

def self.system_bus
  SystemBus.instance
end

.type(string_type) ⇒ DBus::Type

Parse a String to a valid Type. This is prefered to DBus::Type#initialize which allows incomplete or invalid types.

Parameters:

Returns:

Raises:

  • SignatureException



400
401
402
 
# File 'lib/dbus/type.rb', line 400

def type(string_type)
  Type::Parser.new(string_type).parse1
end

.types(string_type) ⇒ Array<DBus::Type>

Parse a String to zero or more Types.

Parameters:

Returns:

Raises:

  • SignatureException



409
410
411
 
# File 'lib/dbus/type.rb', line 409

def types(string_type)
  Type::Parser.new(string_type).parse
end

.variant(string_type, value) ⇒ Array(DBus::Type::Type,::Object)

Deprecated.

Use DBus::Data::Variant#initialize instead

Make an explicit [Type, value] pair

Parameters:

Returns:



419
420
421
 
# File 'lib/dbus/type.rb', line 419

def variant(string_type, value)
  Data::Variant.new(value, member_type: string_type)
end